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Image processing method and device, electronic equipment and storage medium

An image processing and image technology, applied in image data processing, image enhancement, climate sustainability, etc., can solve the problems of inability to improve the quality of radar imaging images and inapplicability

Active Publication Date: 2020-10-02
AEROSPACE INFORMATION RES INST CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the absence of prior information such as radar parameters, or only correcting a single problem image, the methods of the prior art are not applicable and cannot improve the image quality of radar imaging

Method used

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  • Image processing method and device, electronic equipment and storage medium
  • Image processing method and device, electronic equipment and storage medium
  • Image processing method and device, electronic equipment and storage medium

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Embodiment Construction

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0077] An image processing method provided by an embodiment of the present invention is suitable for figure 1 The spaceborne ScanSAR imaging system shown, figure 1 The working mechanism of the spaceborne ScanSAR is shown. A satellite 100 carrying a synthetic aperture radar sensor operates at a height H along a satellite orbit 120. Within a synthetic aperture time, the ScanSAR changes the antenna elevation angle, performs beam switching, and conducts multiple measurements along the distance direction. scan to obtain the echo data of multiple sub-bands 110_1, 110_2...110_n, and then splicing the echo data on each sub-band after imaging to obtain a super large-width synthetic aperture image. Since the ScanSAR image is oblique range imaging, in the embodiment of the present inven...

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Abstract

The embodiment of the invention discloses an image processing method and device, electronic equipment and a storage medium, which can improve the image quality of radar imaging. The method comprises the following steps: in at least two original images, obtaining a gray value of each original pixel in each original image; wherein each original pixel is a pixel contained in each original image; based on the gray value standard deviation of each azimuth in each original image, correcting each original image under the action of a preset low-pass filtering model to obtain at least two first corrected images; obtaining a gray value mean value of each azimuth in each first correction image, and correcting each first correction image under the action of a preset low-pass filtering model based on the gray value mean value of each azimuth to obtain at least two target images; and splicing the at least two target images into a composite image to complete an image processing process.

Description

technical field [0001] The invention relates to the field of synthetic aperture radar imaging, in particular to an image processing method and device, electronic equipment, and a storage medium. Background technique [0002] Synthetic Aperture Radar (SAR) has been developed for 60 years since its birth in the late 1950s, and has become one of the important means for high-resolution earth observation and global management. Synthetic aperture radar, as an active remote sensor working in the microwave frequency band, is not limited by sunlight and weather conditions, and can observe the earth all-weather, all-time, and in all directions, compared with optical sensors. There are important applications in the field of modern microwave remote sensing. In order to further reduce the global observation cycle and monitor large-scale surface phenomena that change rapidly, Scanning Synthetic Aperture Radar (ScanSAR) adopts the Burst working mode to obtain a larger surveying range of t...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/50G06T5/70Y02A90/10
Inventor 蔡永华范怀涛王宇张志敏王沛邓云凯禹卫东
Owner AEROSPACE INFORMATION RES INST CAS
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